Design and Simulation of SPR Sensors by Employing Silicon and Silicon-Nitride With Mono and Bimetal Layers for Sensitivity Enhancement

Kumar, Shatrughna; Yadav, Archana; Kumar, Santosh; Malomed, Boris A.

doi:10.1109/jsen.2024.3355766

Cited by 16 publications

(1 citation statement)

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“…Prism's surface is coated by a metal film, in the Kretschmann configuration, whereas an air gap is maintained between the prism and the metal interface in the Otto configuration. Light bounces directly from the prism to the metal film in the Kretschmann configuration, and this property makes the Kretschmann configuration more popular than the Otto configuration [7]. Optical sensors offer novel features, such as high sensitivity, quantitative response, rapid detection, and selectivity.…”

Section: Introductionmentioning

confidence: 99%

Design and Development of High Sensitive Surface Plasmon Resonance Biosensors for Glucose Detection

Rahman

2024

Preprint

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A high-glucose diet may increase the probability of developing diabetes. Currently, instead of checking blood samples, bio-photonic sensors are used to detect glucose levels. Surface plasmon resonance (SPR) based sensors limit the need to prick patients' skin to draw blood samples whose glucose levels need to be determined. The motivation is to design a high-sensitivity and optimum resulting SPR biosensor for this purpose based on the Kretschmann configuration. In this configuration, multilayers are vertically stacked together to improve the optical and electronic properties of the proposed surface plasmon resonance sensor. MATLAB simulations were performed to determine the performance parameters, taking 633 nm as the operating wavelength. The CaF2/Ag/ZnSe/BP/SM-based structure has the highest sensitivity of 511 𝒅𝒆𝒈/𝑹𝑰𝑼 for the optimized thickness of the layers used in this structure. The performance parameters, including the sensitivity, full width at half maximum (FWHM), figure of merit (FoM), and detection accuracy (DA), were measured, and the results were compared to evaluate the findings. We strongly believe that employing such a structure would make glucose detection easier and more effective using SPR biosensors.

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Section: Introductionmentioning

confidence: 99%